Last Lab: • You should now understand: ▫ The anatomical structures of motor nerves and skeletal muscle ▫ The excitation-contraction coupling process ▫ The role of calcium in skeletal muscle contraction ▫ The definition of a motor unit ▫ Motor unit recruitment, spatial summation, the relationship of voltage and force, threshold, and graded response ▫ Temporal summation, the relationship of frequency and force, and tetany ▫ The role of acetylcholine and the definition of competitive inhibition ▫ How direct stimulation works, and how this compares to neural stimulation

Purpose of the lab • To define a reflex • To understand the components of a reflex arc • To evaluate two common human reflexes • To understand monosynaptic vs polysynaptic reflexes • To understand factors modulating the responses

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